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<br class="inv"><a href="index.html">目录</a> / <a href="toc_inspection.html">Inspection</a> / <a href="toc_inspection_ocv.html">OCV</a><br class="inv">
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<h1 id="sec_name">
<span data-if="hdevelop" style="display:inline;">create_ocv_proj</span><span data-if="c" style="display:none;">T_create_ocv_proj</span><span data-if="cpp" style="display:none;">CreateOcvProj</span><span data-if="dotnet" style="display:none;">CreateOcvProj</span><span data-if="python" style="display:none;">create_ocv_proj</span> (算子名称)</h1>
<h2>名称</h2>
<p><code><span data-if="hdevelop" style="display:inline;">create_ocv_proj</span><span data-if="c" style="display:none;">T_create_ocv_proj</span><span data-if="cpp" style="display:none;">CreateOcvProj</span><span data-if="dotnet" style="display:none;">CreateOcvProj</span><span data-if="python" style="display:none;">create_ocv_proj</span></code> — Create a new OCV tool based on gray value projections.</p>
<h2 id="sec_synopsis">参数签名</h2>
<div data-if="hdevelop" style="display:inline;">
<p>
<code><b>create_ocv_proj</b>( :  : <a href="#PatternNames"><i>PatternNames</i></a> : <a href="#OCVHandle"><i>OCVHandle</i></a>)</code></p>
</div>
<div data-if="c" style="display:none;">
<p>
<code>Herror <b>T_create_ocv_proj</b>(const Htuple <a href="#PatternNames"><i>PatternNames</i></a>, Htuple* <a href="#OCVHandle"><i>OCVHandle</i></a>)</code></p>
</div>
<div data-if="cpp" style="display:none;">
<p>
<code>void <b>CreateOcvProj</b>(const HTuple&amp; <a href="#PatternNames"><i>PatternNames</i></a>, HTuple* <a href="#OCVHandle"><i>OCVHandle</i></a>)</code></p>
<p>
<code>void <a href="HOCV.html">HOCV</a>::<b>HOCV</b>(const HTuple&amp; <a href="#PatternNames"><i>PatternNames</i></a>)</code></p>
<p>
<code>void <a href="HOCV.html">HOCV</a>::<b>CreateOcvProj</b>(const HTuple&amp; <a href="#PatternNames"><i>PatternNames</i></a>)</code></p>
<p>
<code>void <a href="HOCV.html">HOCV</a>::<b>CreateOcvProj</b>(const HString&amp; <a href="#PatternNames"><i>PatternNames</i></a>)</code></p>
<p>
<code>void <a href="HOCV.html">HOCV</a>::<b>CreateOcvProj</b>(const char* <a href="#PatternNames"><i>PatternNames</i></a>)</code></p>
<p>
<code>void <a href="HOCV.html">HOCV</a>::<b>CreateOcvProj</b>(const wchar_t* <a href="#PatternNames"><i>PatternNames</i></a>)  <span class="signnote">
            (
            Windows only)
          </span></code></p>
</div>
<div data-if="com" style="display:none;"></div>
<div data-if="dotnet" style="display:none;">
<p>
<code>static void <a href="HOperatorSet.html">HOperatorSet</a>.<b>CreateOcvProj</b>(<a href="HTuple.html">HTuple</a> <a href="#PatternNames"><i>patternNames</i></a>, out <a href="HTuple.html">HTuple</a> <a href="#OCVHandle"><i>OCVHandle</i></a>)</code></p>
<p>
<code>public <a href="HOCV.html">HOCV</a>(<a href="HTuple.html">HTuple</a> <a href="#PatternNames"><i>patternNames</i></a>)</code></p>
<p>
<code>void <a href="HOCV.html">HOCV</a>.<b>CreateOcvProj</b>(<a href="HTuple.html">HTuple</a> <a href="#PatternNames"><i>patternNames</i></a>)</code></p>
<p>
<code>void <a href="HOCV.html">HOCV</a>.<b>CreateOcvProj</b>(string <a href="#PatternNames"><i>patternNames</i></a>)</code></p>
</div>
<div data-if="python" style="display:none;">
<p>
<code>def <b>create_ocv_proj</b>(<a href="#PatternNames"><i>pattern_names</i></a>: MaybeSequence[str]) -&gt; HHandle</code></p>
</div>
<h2 id="sec_description">描述</h2>
<p><code><span data-if="hdevelop" style="display:inline">create_ocv_proj</span><span data-if="c" style="display:none">create_ocv_proj</span><span data-if="cpp" style="display:none">CreateOcvProj</span><span data-if="com" style="display:none">CreateOcvProj</span><span data-if="dotnet" style="display:none">CreateOcvProj</span><span data-if="python" style="display:none">create_ocv_proj</span></code> creates a new OCV tool. This tool will
be used to train good-patterns for the optical character verification.
The training is done using 该算子 <a href="traind_ocv_proj.html"><code><span data-if="hdevelop" style="display:inline">traind_ocv_proj</span><span data-if="c" style="display:none">traind_ocv_proj</span><span data-if="cpp" style="display:none">TraindOcvProj</span><span data-if="com" style="display:none">TraindOcvProj</span><span data-if="dotnet" style="display:none">TraindOcvProj</span><span data-if="python" style="display:none">traind_ocv_proj</span></code></a>.
Thus <a href="traind_ocv_proj.html"><code><span data-if="hdevelop" style="display:inline">traind_ocv_proj</span><span data-if="c" style="display:none">traind_ocv_proj</span><span data-if="cpp" style="display:none">TraindOcvProj</span><span data-if="com" style="display:none">TraindOcvProj</span><span data-if="dotnet" style="display:none">TraindOcvProj</span><span data-if="python" style="display:none">traind_ocv_proj</span></code></a> is normally called after
<code><span data-if="hdevelop" style="display:inline">create_ocv_proj</span><span data-if="c" style="display:none">create_ocv_proj</span><span data-if="cpp" style="display:none">CreateOcvProj</span><span data-if="com" style="display:none">CreateOcvProj</span><span data-if="dotnet" style="display:none">CreateOcvProj</span><span data-if="python" style="display:none">create_ocv_proj</span></code>.
</p>
<p>The pattern comparison is based on the gray projections:
For every training pattern the horizontal and vertical gray
projections are calculated by summing up the gray values along
the rows and columns inside the region of the pattern.
This operation is applied to the training patterns and the
test patterns. For the training patterns the result
is stored inside the OCV tool to save runtime while comparing patterns.
The OCV is done by comparing the corresponding projections.
The Quality is the similarity of the projections.
</p>
<p>Input for <code><span data-if="hdevelop" style="display:inline">create_ocv_proj</span><span data-if="c" style="display:none">create_ocv_proj</span><span data-if="cpp" style="display:none">CreateOcvProj</span><span data-if="com" style="display:none">CreateOcvProj</span><span data-if="dotnet" style="display:none">CreateOcvProj</span><span data-if="python" style="display:none">create_ocv_proj</span></code> are the names of the patterns
(<a href="#PatternNames"><i><code><span data-if="hdevelop" style="display:inline">PatternNames</span><span data-if="c" style="display:none">PatternNames</span><span data-if="cpp" style="display:none">PatternNames</span><span data-if="com" style="display:none">PatternNames</span><span data-if="dotnet" style="display:none">patternNames</span><span data-if="python" style="display:none">pattern_names</span></code></i></a>) which have to be trained.
The number and the names can be chosen arbitrary. In most case only
one pattern will be trained, thus only one name has to be
specified. The names will be used when doing the OCV
(<a href="do_ocv_simple.html"><code><span data-if="hdevelop" style="display:inline">do_ocv_simple</span><span data-if="c" style="display:none">do_ocv_simple</span><span data-if="cpp" style="display:none">DoOcvSimple</span><span data-if="com" style="display:none">DoOcvSimple</span><span data-if="dotnet" style="display:none">DoOcvSimple</span><span data-if="python" style="display:none">do_ocv_simple</span></code></a>). It is possible to specify more names than
actually used. These might be trained later.
</p>
<p>To close the OCV tool, i.e. to free the memory,
该算子 <a href="close_ocv.html"><code><span data-if="hdevelop" style="display:inline">close_ocv</span><span data-if="c" style="display:none">close_ocv</span><span data-if="cpp" style="display:none">CloseOcv</span><span data-if="com" style="display:none">CloseOcv</span><span data-if="dotnet" style="display:none">CloseOcv</span><span data-if="python" style="display:none">close_ocv</span></code></a> is called.
</p>
<h2 id="sec_execution">运行信息</h2>
<ul>
  <li>多线程类型:可重入(与非独占操作符并行运行)。</li>
<li>多线程作用域:全局(可以从任何线程调用)。</li>
  <li>未经并行化处理。</li>
</ul>
<p>This operator returns a handle. Note that the state of an instance of this handle type may be changed by specific operators even though the handle is used as an input parameter by those operators.</p>
<h2 id="sec_parameters">参数表</h2>
  <div class="par">
<div class="parhead">
<span id="PatternNames" class="parname"><b><code><span data-if="hdevelop" style="display:inline">PatternNames</span><span data-if="c" style="display:none">PatternNames</span><span data-if="cpp" style="display:none">PatternNames</span><span data-if="com" style="display:none">PatternNames</span><span data-if="dotnet" style="display:none">patternNames</span><span data-if="python" style="display:none">pattern_names</span></code></b> (input_control)  </span><span>string(-array) <code>→</code> <span data-if="dotnet" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="python" style="display:none">MaybeSequence[str]</span><span data-if="cpp" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="c" style="display:none">Htuple</span><span data-if="hdevelop" style="display:inline"> (string)</span><span data-if="dotnet" style="display:none"> (<i>string</i>)</span><span data-if="cpp" style="display:none"> (<i>HString</i>)</span><span data-if="c" style="display:none"> (<i>char*</i>)</span></span>
</div>
<p class="pardesc">List of names for patterns to be trained.</p>
<p class="pardesc"><span class="parcat">Default:
      </span>
    <span data-if="hdevelop" style="display:inline">'a'</span>
    <span data-if="c" style="display:none">"a"</span>
    <span data-if="cpp" style="display:none">"a"</span>
    <span data-if="com" style="display:none">"a"</span>
    <span data-if="dotnet" style="display:none">"a"</span>
    <span data-if="python" style="display:none">"a"</span>
</p>
</div>
  <div class="par">
<div class="parhead">
<span id="OCVHandle" class="parname"><b><code><span data-if="hdevelop" style="display:inline">OCVHandle</span><span data-if="c" style="display:none">OCVHandle</span><span data-if="cpp" style="display:none">OCVHandle</span><span data-if="com" style="display:none">OCVHandle</span><span data-if="dotnet" style="display:none">OCVHandle</span><span data-if="python" style="display:none">ocvhandle</span></code></b> (output_control)  </span><span>ocv <code>→</code> <span data-if="dotnet" style="display:none"><a href="HOCV.html">HOCV</a>, </span><span data-if="dotnet" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="python" style="display:none">HHandle</span><span data-if="cpp" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="c" style="display:none">Htuple</span><span data-if="hdevelop" style="display:inline"> (handle)</span><span data-if="dotnet" style="display:none"> (<i>IntPtr</i>)</span><span data-if="cpp" style="display:none"> (<i>HHandle</i>)</span><span data-if="c" style="display:none"> (<i>handle</i>)</span></span>
</div>
<p class="pardesc">Handle of the created OCV tool.</p>
</div>
<h2 id="sec_example_all">Example (C++ (HALCON 5.0-10.0))</h2>
<pre class="example">
create_ocv_proj("A",&amp;ocv_handle);
draw_region(&amp;ROI,window_handle);
reduce_domain(Image,ROI,&amp;Sample);
traind_ocv_proj(Sample,ocv_handle,"A","single");
</pre>
<h2 id="sec_result">结果</h2>
<p><code><span data-if="hdevelop" style="display:inline">create_ocv_proj</span><span data-if="c" style="display:none">create_ocv_proj</span><span data-if="cpp" style="display:none">CreateOcvProj</span><span data-if="com" style="display:none">CreateOcvProj</span><span data-if="dotnet" style="display:none">CreateOcvProj</span><span data-if="python" style="display:none">create_ocv_proj</span></code> returns <TT>2</TT> (
      <TT>H_MSG_TRUE</TT>)
    , if
the parameters are correct.
Otherwise, an exception is raised.</p>
<h2 id="sec_successors">可能的后置算子</h2>
<p>
<code><a href="traind_ocv_proj.html"><span data-if="hdevelop" style="display:inline">traind_ocv_proj</span><span data-if="c" style="display:none">traind_ocv_proj</span><span data-if="cpp" style="display:none">TraindOcvProj</span><span data-if="com" style="display:none">TraindOcvProj</span><span data-if="dotnet" style="display:none">TraindOcvProj</span><span data-if="python" style="display:none">traind_ocv_proj</span></a></code>, 
<code><a href="write_ocv.html"><span data-if="hdevelop" style="display:inline">write_ocv</span><span data-if="c" style="display:none">write_ocv</span><span data-if="cpp" style="display:none">WriteOcv</span><span data-if="com" style="display:none">WriteOcv</span><span data-if="dotnet" style="display:none">WriteOcv</span><span data-if="python" style="display:none">write_ocv</span></a></code>, 
<code><a href="close_ocv.html"><span data-if="hdevelop" style="display:inline">close_ocv</span><span data-if="c" style="display:none">close_ocv</span><span data-if="cpp" style="display:none">CloseOcv</span><span data-if="com" style="display:none">CloseOcv</span><span data-if="dotnet" style="display:none">CloseOcv</span><span data-if="python" style="display:none">close_ocv</span></a></code>
</p>
<h2 id="sec_alternatives">可替代算子</h2>
<p>
<code><a href="read_ocv.html"><span data-if="hdevelop" style="display:inline">read_ocv</span><span data-if="c" style="display:none">read_ocv</span><span data-if="cpp" style="display:none">ReadOcv</span><span data-if="com" style="display:none">ReadOcv</span><span data-if="dotnet" style="display:none">ReadOcv</span><span data-if="python" style="display:none">read_ocv</span></a></code>
</p>
<h2 id="sec_see">参考其它</h2>
<p>
<code><a href="create_ocr_class_box.html"><span data-if="hdevelop" style="display:inline">create_ocr_class_box</span><span data-if="c" style="display:none">create_ocr_class_box</span><span data-if="cpp" style="display:none">CreateOcrClassBox</span><span data-if="com" style="display:none">CreateOcrClassBox</span><span data-if="dotnet" style="display:none">CreateOcrClassBox</span><span data-if="python" style="display:none">create_ocr_class_box</span></a></code>
</p>
<h2 id="sec_module">模块</h2>
<p>
OCR/OCV</p>
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